Enhancement of Magnetocaloric Effects in Single Phase La1-zNdz(Fe0.88S 0.12)13

S. Fujieda; A. Fujita; Kazuaki Fukamichi

doi:10.4028/www.scientific.net/MSF.561-565.1093

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HomeMaterials Science ForumMaterials Science Forum Vols. 561-565Enhancement of Magnetocaloric Effects in Single...

Enhancement of Magnetocaloric Effects in Single Phase La_1-zNd_z(Fe_0.88S _0.12)₁₃

Abstract:

The single phase of a cubic NaZn13-type La1-zNdz(Fe0.88Si0.12)13 is obtained in the region z ≤ 0.2. The field-induced first-order transition from the paramagnetic to ferromagnetic state, that is, the itinerant-electron metamagnetic (IEM) transition is kept after the substitution of Nd. In addition, a discontinuous change of magnetization at the Cure temperature becomes larger with increasing z. As a result, the isothermal magnetic entropy change and the relative cooling power in the magnetic field change from 0 to 5 T increase to –27 J/kg K and 518 J/kg, respectively, by the partial substitution of z = 0.2.

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Materials Science Forum (Volumes 561-565)

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1093-1096

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https://doi.org/10.4028/www.scientific.net/MSF.561-565.1093

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October 2007

Authors:

S. Fujieda, A. Fujita, Kazuaki Fukamichi

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Isothermal Magnetic Entropy Change Magnetic Refrigerant, Itinerant-Electron Metamagnetic Transition

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